Adaptive Control for HVdc Power Transmission Systems

Abstract

The transient petformance of High Voltage Direct Current (HVdc) power transmission systems depends heavily on the current regulators associated to the converter control systems. The tuning of these current regulators is a function of the converters short- circuit ratio, or equivalently of all the net converter commutation resistances. These resistances vary with the network operating conditions and they are affected by AC system contingencies.